/**
 * @author Administrator
 * @version V1.0
 * @ProjectName:IntelliJ IDEA
 * @PackageName: PACKAGE_NAME
 * @ClassName: testArr
 * @Description: TODO(这里用一句话描述这个类的作用)
 * @date 2019/10/4 14:57
 * @Copyright 金斗版板所有
 */
import java.util.*;
public class testArr {
    public static void main(String[] args) {
        int [] arr={57,90,89,56,78,89,76};
        Arrays.sort(arr);
        System.out.println(Arrays.toString(arr));
        arr arr1=new arr();
        int count=arr1.rt(arr);
        System.out.println(count);

    }


}
